CN200949823Y

CN200949823Y - Blast type secondary premix burner

Info

Publication number: CN200949823Y
Application number: CN200620076622.3U
Authority: CN
Inventors: 李英; 李俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-09-26
Filing date: 2006-09-26
Publication date: 2007-09-19
Anticipated expiration: 2016-09-26

Abstract

The utility model discloses a blowing-type secondary pre-mixing combustor comprising a furnace end body and a cover plate, wherein, the furnace end body is provided with a fuel-gas intake pipe, a wind-intake pipe and a wind-intake hole, the cover plate is enclosed with a gas mixing ring and the upper part of the gas mixing ring is provided with a fire-hole plate; adding the gas mixing ring and the fire-hole plate to the prior combustor, the utility model makes the fuel gas and air be adequately mixed to burn; the temperature of the flame is capable of reaching more than 1200 DEG C, which is capable of saving more than thirty percent of the fuel gas.

Description

Blowing-type secondary premix burner

Technical field

The utility model relates to a kind of blowing-type secondary premix burner.

Background technology

Traditional air blast burner (is called for short: burner) as shown in Figure 1, be limit spray wind, limit spray combustion gas, limit mixing, limit burning, abbreviate back mixing (diffusion type) or half premixed burning as, be used for the cooking stove of catering trade mostly.Because air is different with the proportion of combustion gas, it can't be good air and combustion gas mixing, thereby can't reach abundant burning.

Summary of the invention

The utility model purpose is: a kind of blowing-type secondary premix burner is provided, it has increased mixed air ring and fire hole plate on burners in prior, make combustion gas and air fully mix after-combustion, flame temperature can reach more than 1200 ℃, and can save combustion gas more than 30%.

The technical solution of the utility model is: a kind of blowing-type secondary premix burner, comprise furnace end body and cover plate, and furnace end body is provided with gas inlet pipe, blast pipe, fresh air inlet, is covered with mixed air ring on the described cover plate, and the top of mixing air ring is provided with the fire hole plate.

The further technical scheme of the utility model is: a kind of blowing-type secondary premix burner, comprise furnace end body and cover plate, and furnace end body is provided with gas inlet pipe, blast pipe, fresh air inlet, is covered with mixed air ring on the described cover plate, and the top of mixing air ring is provided with the fire hole plate; Described fire hole plate comprises head layer fire hole plate and two layers of fire hole plate of installing at interval, is provided with spacer ring between head layer fire hole plate and two layers of fire hole plate, and the fumarole on head layer fire hole plate and the two layers of fire hole plate is a whirl hole.

The more detailed technical scheme of the utility model is: a kind of blowing-type secondary premix burner, comprise furnace end body and cover plate, and furnace end body is provided with gas inlet pipe, blast pipe, fresh air inlet, is covered with mixed air ring on the described cover plate, and the top of mixing air ring is provided with the fire hole plate; Described fire hole plate comprises head layer fire hole plate and two layers of fire hole plate of installing at interval, is provided with spacer ring between head layer fire hole plate and two layers of fire hole plate, and the fumarole on head layer fire hole plate and the two layers of fire hole plate is a whirl hole; The sidewall of described mixed air ring is provided with the ever-burning flame nozzle, and the ever-burning flame nozzle is connected with the ever-burning flame tracheae, and the ever-burning flame tracheae enters mixed air ring and is bent upwards, and after passing two layers of fire hole plate and head layer fire hole plate the ever-burning flame cap is installed; Described head layer fire hole plate top is provided with the banking fire circle.

The utility model advantage is:

1. the utility model has increased mixed air ring and fire hole plate on burners in prior, makes combustion gas and air fully mix after-combustion, and flame temperature can reach more than 1200 ℃, and can save combustion gas more than 30%.

2. fire hole plate of the present utility model be provided with head layer fire hole plate and two layers of fire hole plate two-layer, make air and combustion gas after mixing chamber mixes, between two-layer fire hole plate, mix once more, thereby improved the efficiency of combustion of combustion gas greatly.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described:

Fig. 1 is the structural representation of existing burner;

Fig. 2 is a structural representation of the present utility model.

Wherein: 1 furnace end body; 2 cover plates; 3 gas inlet pipes; 4 blast pipes; 5 fresh air inlets; 6 mix air ring; 7 fire hole plates; 71 layer fire hole plates; 72 2 layers of fire hole plate; 8 spacer rings; 9 ever-burning flame nozzles; 10 ever-burning flame tracheaes; 11 ever-burning flame caps; 12 whirl hole; 13 banking fire circles.

The specific embodiment

Embodiment: as shown in Figure 2, a kind of blowing-type secondary premix burner, comprise furnace end body 1 and cover plate 2, furnace end body 1 is provided with gas inlet pipe 3, blast pipe 4, fresh air inlet 5, be covered with on the described cover plate 2 and mix air ring 6, the top of mixing air ring 6 is provided with fire hole plate 7, fire hole plate 7 comprises head layer fire hole plate 71 and two layers of fire hole plate 72 of installing at interval, fumarole on head layer fire hole plate 71 and the two layers of fire hole plate 72 is a whirl hole 12, be provided with spacer ring 8 between head layer fire hole plate 71 and two layers of fire hole plate 72, head layer fire hole plate 71 tops are provided with banking fire circle 13;

The sidewall that mixes air ring 6 is provided with ever-burning flame nozzle 9, and ever-burning flame nozzle 9 is connected with ever-burning flame tracheae 10, and ever-burning flame tracheae 9 is bent upwards after entering and mixing air ring 6, and after passing two layers of fire hole plate 72 and head layer fire hole plate 71 ever-burning flame cap 11 is installed.

The utility model by the eddy flow tap hole of two layers of fire hole plate 72, enters spacer ring 8 after air and combustion gas are changed into the premix of primary air and combustion gas by former combustion chamber again, the quadratic space hybrid chamber Forced Mixing of formation, from the beginning ejection burning in the layer fire hole plate 71 again.At this moment, from the beginning the combustion gas of ejection has contained a certain proportion of air (oxygen) in the layer fire hole plate 71, lights by naked light to reach abundant burning, and flame temperature at this moment can reach more than 1200 ℃, and the flame temperature of conventional burners is about 970 ℃.It and existing blowing-type burning (burner) contrast, and can economize gas more than 30%.

Claims

1. A blast type secondary premix burner, comprising a burner body (1) and a cover plate (2), the burner body (1) is provided with a gas inlet pipe (3), an air inlet pipe (4) . The air inlet hole (5), is characterized in that: the upper cover of the cover plate (2) is provided with an air mixing ring (6), and the upper part of the air mixing ring (6) is provided with a fire hole plate (7).

2. The blast type secondary premixing burner according to claim 1, characterized in that: the fire orifice (7) comprises a head fire orifice (71) and a second fire orifice ( 72), spacer ring (8) is provided between the first layer of fire hole plate (71) and the second layer of fire hole plate (72).

3. The blower type secondary premix burner according to claim 2, characterized in that: the side wall of the gas mixing ring (6) is provided with an ignition nozzle (9), and the ignition nozzle (9) is connected to There is an eternal flame trachea (10), and the eternal flame trachea (9) bends upward after entering the gas mixing circle (6), and after passing through the second-layer fire orifice plate (72) and the first-layer fire orifice plate (71), an eternal flame is installed Hats (11).

4. The blast-type secondary premixing burner according to claim 1, characterized in that: the gas injection holes on the first layer of fire orifice plate (71) and the second layer of fire orifice plate (72) are swirl holes (12).

5. The blast-type secondary premixing burner according to claim 2, characterized in that: a pressure ring (13) is provided on the upper part of the first fire orifice plate (71).